CVE-2018-5303: An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2

Q: How do I fix CVE-2018-5303?

r420 rfid reader firmware: upgrade to 2.2.2. Exact commands for each OS are on this page.

Q: Is CVE-2018-5303 being exploited?

CVE-2018-5303 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-5303 affect?

CVE-2018-5303 affects r420 rfid reader firmware. Severity is medium (CVSS 5.4). An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2. The license key parameter of the web application is vulnerable to Cross Site Scripting; this vulnerability allows an attacker to send malicious code to an

Q: How urgent is CVE-2018-5303?

Priority 35/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2018-5303 is a medium-severity flaw (CVSS 5.4) affecting r420 rfid reader firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2. The license key parameter of the web application is vulnerable to Cross Site Scripting; this vulnerability allows an attacker to send malicious code to another user.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-79
Published	2018-05-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: impinj

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-05-11 21:29 UTCPublished CVE record published
2026-06-17 02:00 UTCUpdated Record last modified

impinj r420 rfid reader firmware UPGRADE

Affected: < 2.2.2

Fixed in: 2.2.2

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-5303?

r420 rfid reader firmware: upgrade to 2.2.2. Exact commands for each OS are on this page.

Is CVE-2018-5303 being exploited?

CVE-2018-5303 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-5303 affect?

CVE-2018-5303 affects r420 rfid reader firmware. Severity is medium (CVSS 5.4). An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2. The license key parameter of the web application is vulnerable to Cross Site Scripting; this vulnerability allows an attacker to send malicious code to an

How urgent is CVE-2018-5303?

Priority 35/100. Public exploit reference

Related CVEs

CVE-2018-5304 MEDIUM 4.3 UPGRADE An issue was discovered on the Impinj Speedway Connect R420 RFID Reader before 2.2.2

References

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